Valve-grinding apparatus



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Sept. 18 1923.

W. l. TUTTLE VALVE GRINDING APPARATUS Filed VApril 29 1922 Fatented l,1f

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A'vmnrnar.. Turrini, orjrae,vrnniacin7 nrfronnrrsnann.'

" A Avanvnnaaramine arraaa'rus afciftizen of; the United States, andaresi- 'dent of `Providence, inthe county, ol' Providence and,-S'tateYpif-Rhode Island, have in-4 ,ventedV an linprovcrnent in.Valve-Gri'ndlngV Apparatus, of Whichthe `lollovviing isa spec#iiicationf Y i s i This invention relates to valve Vgrinding apparatusand the like. 4One o1' the objects i thereotl is torprovide; anapparatus of Vthe above nature'vhieh is strong and `reliableliard,lpractical use. `Another" object" is' to l l5 provide an apparatusor" theabovenature which is readily adjustable to varying con- ',ditionsof usefan'd highly er'licient at` all .f times. Another objectisfto'provide a construction'of the abovenatnre which is simple ,f 20tooperatc and maybefem'p'loyed Without the necessityol agreatdegree ofmanualjslrill. Other,` objects Awill be in. part obvious and in partpointed outhereinafter., l j

The invention accordinglyl consists' inthe -25 leatures lofconstruction, vcombinations of elements and Varrangements of parts asWill be exempllfiedjin lthe structure to behereinafterdescribedf andthe`scope of theapv plication oit which ,will "be" indicated in'- the j' i30. 'following claims,

fis shownrone of the various possible "lein- 'bodimentsioi thisinvention, f Y. Y Figure 1'is aj yside elevationro'l? a valve grindingtool, 'certain .parts b 'eingshoivnin section; and "j Figure'j 2 i 1qtion' viewed along the' line 2+2 ot 1 in" the direction' indicatedbythe arrows, 40 certain parts being swung vout ol position.VSimilarreference characters refer to si1nilar parts lin both viervsnfthe drawing. Y As conducive to a clearer understanding of." certain`features of' this invention, it

AS may be here noted .that in Vthe process ot grindingA valvesY of theusual pop-valve type f it is desirable to Ina-heuse ofa'deviceiwhichivillreliably engage the valve headand by means of which' theY valve mayberapidly' rotateddirstinone direction and thenin' vthel "ot-her. thefconstruction ,offthese valves, itis common practice to provide the Y@hee-.ds with a diametrical groove and in the l centra-l portion. of.this groove' is commonly i-55 provided a smallreeess i'vhich marks theaxis of the valve head.

1.922. semina, 557,305:

center ot theV valve head.V Other valve heads Amay be provided'uiith apair ofV diametri cally `opposed recesses While some are Vprovided withboth'the groove and therecesses. lllhichever ofthe above islprovided itis Vdesirable t0 have at hand a tool which Will v reliably andefficiently engage the valve head to-'turn the same when it is necessaryto peril'orm an operation such as grinding, and the "provision of such atool-is one of the dom# "inant aims of this invention. i y I" Referringnovv to Fig. V1 o1 the drawing "andavell" adapted tonieet'theConditioneel l' in detail, there is shown a crank arm 10 its 'eccentricportion and With a suitable handle 12 rotatably mounted at its upperende-Secured `to the lower end of crank '10 in any suitable manner, asby means of a slot Vconnection as shown and rivet- 13, is a member 14,shown more clearly in Fig. 2, the lower end of which 1s preferablyshaped to form a blunt blade 15 Which is adapted. to -be receivedin thedianietrical slot in the top of a valve head, as shown diagrammatic'allyin Fig. 2. At thecentral portion of blade 15 is'preferably formed a.downwardly projecting lug V12' which is adapted to be receivedin therecess in the center of the valve head groove.` Thus, as

y 1 A blade 15 is inserted in the valve head la the accompanying drawinginwhich;

gr0ove,rlug 17 VVwill rest in Lthe centermark` or recessiotl the valvehead andblade 15 ivill'be automatically centered with respect `'to theaXis Vdii the valve.

is rotated by means of the` eccentric handle 4. A 11, vthe axis of`rotation otcrank 10 may is iat" detached sectional eleva- As the blade15 beheld in alignment `with the axis of rohandle 12. `Lug 1.7fpreventsany slipping ot Vblade 15 inthe valve head slot or groove and-thus atall times the blade 15 is held centered ivith'respect to the valve headand the -aXis of `rotation of the crank 10 may be easily held insubstantial alignment with the In this manner theY grinding operation isgreatly facilitated.

The member' 141- is preferably provided vvith a curved'portion 18torming a transversegroove-on one side thereof in which rest a-'pair ofoverlapping arms 19 `and 20. Arms 191and 2O may be Semicircular in crosssection, as shown, fitting snugly together and they are.t preferablyclamped against member 111 by a link 21 which is secured @sereni ;ijinsfwend-20 provided vwithV @p'airp of extensions 24 and Q5 i'espeetivelywvhicli extend at substantially right angles fLngsgQG-{andperative'position as and"v lug 17,

Y tlieflatfter7 the arms 2413110125 may befsvvuiig out oit operativeposition asshown .inf Fig. 2 or injay'be completely renfioved bvsiniplyloosening` thumb. screw .lnigs' v26 and QTfma-yY be' si iaced'iirom eachother asdesiredrlo suitgtlie spacing between-,the recesses in theV valvehead sineej theyV are formedonv Iindegendent members 19an'cl20-i-vliiclijniav lbeloosen'ed-simply b v a slighttnrn of screw Y23 and may be moved relativeto eachother.

llievalve head may` be rotated byniea-ns oi handle ll ais-describedabove' and-.the axis ofthe eiaiik lQ'niaytbeSlieldjin alignment with thevalve axisihyf means. of handle 12,' the ltwo lugs 2G and 27m thisinstanceserv- .ing 'toeentei'fthe device v-vvitlirespect to the valveheadf i l Nloreover, when' i1; isdesired to use one .of the devices forengaging the. valve head,

,i swinging-of theaims 9A: and 25 into oper i ative oi' engaging:position as-shoWniIi Fig. lautomatieally raises :t-heblade 15 andaitstheotlier is automatically made ineffective Vas a 'valve-head engagingdevice. T l'ius,' for example, ifi tlieilugs Q6 and 27' are `intendedfor enffafrement' with the valve head "the D D l i y 5associatedpartsinto ineffective and unobstiuctiveposition.

.It willftli'us be seen thatthere is herein provided `a device which Vis`paiti'culai'ly adapted to -meetrw'fai'ying conditions inprae- .ticaluse and. `which is Capable of thoroughly eicientoperation at alltimesregardless. of theconditions; met with."

Asmany` possible embodiments Vbe' made of the above inventionandaslinany f changes might be madej in thegembodiment ,above set,-orth, it is to be understood that all matter lliereinbefore set-forthor'slioivn 2in the accompanyingdrawing'is' to be inter-fVV preted asillustrative Vand not in la limiting: binatiom abladeiadapted to fitinto agslot;

' f :I Y iVY in the top of a valve head,fa member: spaced f il claim 'asnivinvention:-v i. `l=' j. vfrom'and removably securedtoa portion of l.VInfvalvegrindinig apparatus, in jeombinatiom ablade adaptedtoengage aslot fOCin-the top of? avalve head, apaii, ofdownwardly extendinglngsassociated with said vlfilade 4adapted toengage a pair ofdiametricallyopposediopenings in theftop ol a valve fhe'ad,meaiis forrotatingisaid'blade and said Y' lugsfand meansadapted to Apermit swing#ing of one of 's aid'lugs' ont ofoperativeposi- C1 -and in order-.tomake Vuse ot 2; :ln valve-grinding apparatiis,"in-leonie -i bination--Aa'biade afdaptedvr to engage a slot,VV

lve head, a'pairFof'doivi j "g Ward-ly extending: lugs associated Withseidf jblade adapted to engagea pairolidiametri?V v"cally opposedopeningsingthe top o la1valvehead, lone cit-said engaging'devices whenin i operative position being; greater lflligthfVV .than thefotheigivlierebfyf'said other device Y rendered ineffective,.` meansjfoi- `i "ot`ating V andfmeansqioigs in the top of a' i svhens the device fof'sreater? lengthV 11P- Vivardlyj as annie and'oiit ofyopeifativejpositioirtovije'nder the other 'deviceeffectiveg bination, z a memberhaving` at' its lower end VVia'blagde adapted to be received in' algroove of arms'iemovably clamped`- upon' saidmemsa? ."formed .tliegtopVofavalves; head, a pair tendin ings La dapted toY engage diametrieallyopposed recesses in Athe-f Atop;- ijf-said4 valve head, said" arms beingadaptedftofbe operative positionfito vfacilitate therusent VVsaid bladeVand means-for rotatingV aboiitjagl `commonv axissaidfblade and said'pair'of '4j In" valve grinding apparatiis,V in combination,4 a membei:Ahaving Vitfits lowerfend va bladefadaptedito. befreeivedfin algioove linthe top of a. valvelieadsaid bladeih'avf ing a projection-iadapted. toenter arec-es's .inftlieV bottom of saidV groove to center said bladewith -i'espeet1jto said valve headja pair of overlapping members.havin-g doWnwvaidly' extending lugs adapted. 4,to engage a Pair.' of,diamet opposed vifeiCess'es' Ain :i said Avalve head7 amember spaced Afrom salidfrst membei1` and; :Clamping said tivo *overl lapping;Amembers to said :first member Y to permit relative sliding offsaidfove'rlappi'ngl .members foradjiist'able spacing of. saidy ings;andfto permit Vfremoval ofs'aidfpjair Y of .membersjto. facilitatel`the- .use featvr said blade membe i. and-means for 1 rotating said'blade AYmembei"and V:said pair i, of Amembers Aabont a1 common axis Vtoytui'ii said valve-V head.

lsaidblade, and. adevice elampedwbetween said member andsaidbladeghavinga pair; Y

of downwardly proj eating. parts adapted to '12'5 Y ber, Aand saidbladeVto move said projectieg` in teoin- 30 bination, a blade adapted to fitinto a slot in the top of a valve head, a pair of overlapping members ofsemieircular cross seotion having downwardly extending projecs tionsadapted to engage a pair of diametrij cally Vopposed recesses in the topof said v valve head, means connecting said members to a portion of saidblade to permit their swinging as a unit about a substantially lateralaxis to move said projections out of operativeiposition, and means forrotating said blade and said projections about a vertical axis.

In testimony whereof, I have signed my name to rthis specification this24th day of April, 1922.

WALTER I. TUTTLE.

